TY - JOUR

T1 - Delamination and Photochemical Modification of a Novel Two-Dimensional Zr-Based Metal–Organic Frameworks

AU - Mohmeyer, Alexander

AU - Schaate, Andreas

AU - Brechtken, Benedikt

AU - Rode, Johannes C.

AU - Warwas, Dawid P.

AU - Zahn, Gesa

AU - Haug, Rolf J.

AU - Behrens, Peter

N1 - © 2018 Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim

PY - 2018/9/3

Y1 - 2018/9/3

N2 - In this contribution we present a novel two-dimensional Zr-based metal–organic framework (MOF) which offers the possibility for delamination and post-synthetic photochemical modification at the linker molecule derived from benzophenone-4,4′-dicarboxylic acid (H2bzpdc). The new Zr-bzpdc-MOF crystallizes in the orthorhombic system as crystals with rhombic shape. The structure was determined from single-crystal diffraction data. The MOF is stable up to 300 °C in air and exhibits a moderate BET surface area of 650 m2 g−1. The material can be obtained as thin sheets of a few nanometer thickness. Single crystals were modified post-synthetically, exploiting the intrinsic reactivity of the benzophenone group with C−H bond containing molecules. In this way, the surface properties of the MOF crystals (e.g., dispersibility in different solvents) can be changed drastically. Delamination and adaptation of the surface chemistry open up novel ways for shaping MOFs, for example, for the incorporation into polymer composites, and pave the way for various applications.

AB - In this contribution we present a novel two-dimensional Zr-based metal–organic framework (MOF) which offers the possibility for delamination and post-synthetic photochemical modification at the linker molecule derived from benzophenone-4,4′-dicarboxylic acid (H2bzpdc). The new Zr-bzpdc-MOF crystallizes in the orthorhombic system as crystals with rhombic shape. The structure was determined from single-crystal diffraction data. The MOF is stable up to 300 °C in air and exhibits a moderate BET surface area of 650 m2 g−1. The material can be obtained as thin sheets of a few nanometer thickness. Single crystals were modified post-synthetically, exploiting the intrinsic reactivity of the benzophenone group with C−H bond containing molecules. In this way, the surface properties of the MOF crystals (e.g., dispersibility in different solvents) can be changed drastically. Delamination and adaptation of the surface chemistry open up novel ways for shaping MOFs, for example, for the incorporation into polymer composites, and pave the way for various applications.

KW - benzophenone

KW - delamination

KW - modulation

KW - post-synthetic modification

KW - Zr-based MOF

UR - http://www.scopus.com/inward/record.url?scp=85052463806&partnerID=8YFLogxK

U2 - 10.1002/chem.201802189

DO - 10.1002/chem.201802189

M3 - Article

C2 - 29968394

AN - SCOPUS:85052463806

VL - 24

SP - 12848

EP - 12855

JO - Chemistry - A European Journal

JF - Chemistry - A European Journal

SN - 0947-6539

IS - 49

ER -